A2A Streaming (SSE)

Before writing code

Fetch live docs:

1. Fetch https://a2a-protocol.org/latest/specification/ for the streaming section
2. Web-search site:github.com a2aproject A2A streaming SSE message/stream for streaming protocol details
3. Web-search site:github.com a2aproject a2a-samples streaming for streaming implementation examples
4. Fetch SDK docs for streaming server/client classes and event types

Conceptual Architecture

What A2A Streaming Is

A2A streaming uses Server-Sent Events (SSE) to deliver real-time task updates from server to client. Instead of waiting for the entire task to complete (message/send), the client receives incremental updates as the agent works (message/stream).

When to Use Streaming